Solving issue 2341: "Pipette and flat curves - no line colors"

rtgui/curveeditorgroup.cc

@@ -277,6 +277,17 @@ void CurveEditorGroup::curveChanged () {
     }
 }
 
+/*
+ * Listener called when the user has modified the curve
+ */
+float CurveEditorGroup::blendPipetteValues (float chan1, float chan2, float chan3) {
+
+	if (cl)
+		return cl->blendPipetteValues(chan1, chan2, chan3);
+
+	return -1.f;
+}
+
 /*
  * Call back method when the reset button is pressed :
  * reset the currently toggled on curve editor

rtgui/curveeditorgroup.h

@@ -89,6 +89,7 @@ protected:
 	void updateGUI (CurveEditor* ce);
 	void curveResetPressed ();
 	void curveChanged ();
+	float blendPipetteValues(float chan1, float chan2, float chan3);
 	void setUnChanged (bool uc, CurveEditor* ce);
 };
 

rtgui/curvelistener.h

@@ -26,11 +26,40 @@ class CurveListener {
     private:
         bool multi;
     public:
+        CurveListener() : multi(false) {}
+        virtual ~CurveListener() {}
         virtual void curveChanged () {}
         virtual void curveChanged (CurveEditor* ce) {}
         void setMulti(bool value) { multi = value; }
         bool isMulti() { return multi; }
-        CurveListener() : multi(false) {}
+
+        /** @brief Blend pipette values from its different channels into a single value
+        If the buffer has more than one channel and one channel, this method will blend them together.
+        @param chan1 first channel's value
+        @param chan2 second channel's value
+        @param chan3 third channel's value
+        @return the blended value */
+        virtual float blendPipetteValues(float chan1, float chan2, float chan3) {
+            float retVal = 0.f;
+            int n = 0;
+            if (chan1 != -1.f) {
+                retVal += chan1;
+                ++n;
+            }
+            if (chan2 != -1.f) {
+                retVal += chan2;
+                ++n;
+            }
+            if (chan3 != -1.f) {
+                retVal += chan3;
+                ++n;
+            }
+            if (n>1)
+                retVal /= n;
+            else if (!n)
+                retVal = -1.f;
+            return retVal;
+        }
 };
 
 #endif

rtgui/gradient.cc

@@ -40,7 +40,7 @@ Gradient::Gradient () : FoldableToolPanel(this), EditSubscriber(ET_OBJECTS), las
 	centerY->set_tooltip_text (M("TP_GRADIENT_CENTER_Y_TOOLTIP"));
 	centerY->setAdjusterListener (this);
 
-	Gtk::HBox* enaBox = Gtk::manage (new Gtk::HBox());
+	enaBox = Gtk::manage (new Gtk::HBox());
 	enaBox->pack_start(*enabled);
 	enaBox->pack_end(*edit, false, false, 0);
 	pack_start(*enaBox);
@@ -289,6 +289,7 @@ void Gradient::trimValues (rtengine::procparams::ProcParams* pp)
 
 void Gradient::setBatchMode (bool batchMode)
 {
+	removeIfThere(enaBox, edit, false);
 	ToolPanel::setBatchMode (batchMode);
 	degree->showEditedCB ();
 	feather->showEditedCB ();

rtgui/gradient.h

@@ -13,6 +13,7 @@ class Gradient : public ToolParamBlock, public AdjusterListener, public Foldable
 
   private:
     int lastObject;
+    Gtk::HBox* enaBox;
 
   protected:
     Gtk::CheckButton* enabled;

rtgui/mydiagonalcurve.cc

@@ -681,6 +681,9 @@ void MyDiagonalCurve::pipetteMouseOver (EditDataProvider *provider, int modifier
 	pipetteG = provider->pipetteVal[1];
 	pipetteB = provider->pipetteVal[2];
 	pipetteVal = 0.f;
+	if (listener)
+		pipetteVal = listener->blendPipetteValues(pipetteR, pipetteG, pipetteB);
+	else {
 		int n = 0;
 		if (pipetteR != -1.f) {
 			pipetteVal += pipetteR;
@@ -698,8 +701,7 @@ void MyDiagonalCurve::pipetteMouseOver (EditDataProvider *provider, int modifier
 			pipetteVal /= n;
 		else if (!n)
 			pipetteVal = -1.f;
-
+	}
-	int num = (int)curve.x.size();
 
 	/* graphW and graphH are the size of the graph */
 	calcDimensions();
@@ -708,7 +710,6 @@ void MyDiagonalCurve::pipetteMouseOver (EditDataProvider *provider, int modifier
 		return;
 
 	double minDistanceX = double(MIN_DISTANCE) / double(graphW-1);
-	double minDistanceY = double(MIN_DISTANCE) / double(graphH-1);
 
 	if (curve.type == DCT_Linear || curve.type == DCT_Spline || curve.type == DCT_NURBS) {
 		// get the pointer position

rtgui/myflatcurve.cc

@@ -205,8 +205,9 @@ void MyFlatCurve::draw () {
             cr->set_line_width (1.);
         }
     }
+
     // draw the color feedback of the control points
-    else if (colorProvider) {
+    if (colorProvider) {
 
         //if (curve.type!=FCT_Parametric)
             for (int i=0; i<(int)curve.x.size(); ++i) {
@@ -919,6 +920,9 @@ void MyFlatCurve::pipetteMouseOver (EditDataProvider *provider, int modifierKey)
 	pipetteG = provider->pipetteVal[1];
 	pipetteB = provider->pipetteVal[2];
 	pipetteVal = 0.f;
+	if (listener)
+		pipetteVal = listener->blendPipetteValues(pipetteR, pipetteG, pipetteB);
+	else {
 		int n = 0;
 		if (pipetteR != -1.f) {
 			pipetteVal += pipetteR;
@@ -936,6 +940,7 @@ void MyFlatCurve::pipetteMouseOver (EditDataProvider *provider, int modifierKey)
 			pipetteVal /= n;
 		else if (!n)
 			pipetteVal = -1.f;
+	}
 
 	snapToElmt = -100;